I have been looking for some direction on how to configure Marlin to do this but I am having difficulty finding where it is clearly spelled out.
Basically, I have a dual z printer with a BTT SKR PRO v1.2 and a BLTouch. I use auto align and auto bed leveling. When I auto align, the gantry gets adjusted to match the bed level. Sometimes, it makes some pronounced corrections. In my mind this puts stress on the whole system.
I would like to install an additional end stop on the second Z and home these first. Then level the bed and/or create a mesh. Ideally, I would like to have the Z axes always running at the same position relative to the homing endstops and then adjust the bed as needed. This dual z homing would also corrert for any untended movement of just one z axis while powered down.
Can anyone point me to where in get direction on how to do this?
Thanks you in advance,